Intermittent 520s for Authenticated Origin Pulls

Resolved

This incident has been resolved.

Update

A fix has been implemented and we are monitoring the results.

Update

The issue has been identified and a fix is being implemented.

Investigating

Cloudflare is aware of and investigating reports of customers intermittently seeing 520s when using Authenticated Origin Pulls. We are working to analyze and mitigate this problem. More updates to follow shortly.